layui.define(function (exports) {
    exports("getUrlParas", function (name) {
        var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");
        var r = window.location.search.substr(1).match(reg);
        if (r !== null) return decodeURI(r[2]);
        return null;
    });
});